Physical Science

“I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn’t feel like a giant. I felt very, very small.” -Neil Armstrong The full Moon is undoubtedly bright. As viewed from the Earth’s surface, it’s the second brightest object of all, after the Sun, and is more…

Where is the cosmic microwave background?

“We are told to let our light shine, and if it does, we won’t need to tell anybody it does. Lighthouses don’t fire cannons to call attention to their shining- they just shine.” -Dwight L. Moody The farther away in space we look, the farther back in time we’re seeing. Light arriving from a star…

“Every particular in nature, a leaf, a drop, a crystal, a moment of time is related to the whole, and partakes of the perfection of the whole.” -Ralph Waldo Emerson When you think of crystals, you likely think of an interlocked, repeating lattice of atoms or molecules. That’s exactly what a conventional crystal is. But…

“Greenhouse gases are the second most important factor for climate, after the Sun.” -Syukuro Manabe In 1967, a groundbreaking paper in climate science was published, detailing the inputs and feedbacks for the first accurate climate model. You don’t have to look far to find contentions that climate models are wrong, inaccurate and unreliable: 8 of…

“As an analogy one can imagine an intelligent amoeba with a good memory. As time progresses the amoeba is constantly splitting, each time the resulting amoebas having the same memories as the parent. Our amoeba hence does not have a life line, but a life tree.” -Hugh Everett We only have the one Universe, despite…

“On a cosmic scale, our life is insignificant, yet this brief period when we appear in the world is the time in which all meaningful questions arise.” -Paul Ricoeur When it comes to the largest bound cosmic structures, it doesn’t get any bigger than galaxy clusters. Unless, that it, you consider when multiple galaxy clusters…

“When you are joyous, look deep into your heart and you shall find it is only that which has given you sorrow that is giving you joy. When you are sorrowful look again in your heart, and you shall see that in truth you are weeping for that which has been your delight.” -Khalil Gibran…

“The Universe is expanding the way your mind is expanding. It’s not expanding into anything; you’re just getting less dense.” -Katie Mack It’s a thing of scientific beauty that we’ve not only been able to determine that the Universe is expanding, but that we’ve been able to measure the rate of expansion so incredibly well.…

“He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.” -Leonardo Da Vinci For centuries, Newton’s theoretical predictions were as unassailable as physics got. His ideas about mechanics, gravitation and optics passed test after test after test. Yet around the…

“Laws of nature mixed with evolutionary/historical contingencies allow for a range of diversity… [t]hat diversity, within the laws of nature, when I step back a bit from the desk or the computer, still surprises me to no end.” -Adrian Lenardic When it comes to the habitability of a planet, there are a lot of assumptions…